[Numpy-discussion] HELP! eig and eigvals hang the python session

Sasha ndarray at mac.com
Sat Jan 21 09:54:02 CST 2006


You may be hitting a known problem in lapack's _geev functions that
rely on computations not being performed with extra precision.

See https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=138683

-- sasha


On 1/21/06, Jose Borreguero <borreguero at gmail.com> wrote:
> Hi all,
> I don't understand what's going on. Here's my python session:
> $ python
> >>> from numpy.random import rand
> >>> a=rand(3,3)
> >>> from numpy.linalg import det,eig
> >>> det(a)
> 0.070796819514446802
> >>> eig(a)
> and the process freezes here (at least 18minutes from now). I checked with
> 'top' and python is using all CPU.
> Any ideas, please?
> jose
>
>
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